Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-16 19:32 UTC

browserbase / stagehand

The SDK For Browser Agents

TypeScript · MDXMIT★ 24,301 stars⑂ 1,686 forkssince Mar 2024View on GitHub ↗
KindLibraryCommand-line toolMCP serverhow this is determined
#agents#ai#llms#playwright#puppeteer#selenium

browserbase/stagehand holds a health index of 94 out of 100, placing it in the Exceptional band. It scores highest on Vitality (96/100) and lowest on Security (58/100). It was last updated today. 2 contributors account for most of its recent work.

94
overall / 100
Exceptional

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

94
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 81 is calibrated to 94 on the published index scale (record calibration 2026-08-02).

Ownership

browserbaseOrganization
1,202 followers66 public repossince Jan 2024

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
Gogithub.com/browserbase/stagehand/packages/sdk-go/v4v4.1.0-47 days ago—
npmbrowse0.9.663,6527444 days ago—
npm@browserbasehq/stagehand4.1.05,269,7979937 days agoaiautomationbrowsertestingweb-scraping
PyPIstagehand4.1.01,109,005657 days agoaibrowserautomationweb-scrapingtesting

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

96Exceptional · 21% of overall

Development activity

100Exceptional
How it's scored
36/36Push recency — last push 0 days ago
36/36Commit cadence — 52/52 weeks with commits
18/18Commit volume — 830 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year830
human_commit_share0.91
days_since_last_push0
active_weeks_last_year52

Release discipline

90Excellent
How it's scored
27/27Ships releases — 81 releases published
36/36Release recency — latest release 19 days ago
27/27Release cadence — a release every ~8.6 days
0/10OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases.
Inputs used
releases_count81
latest_release_tag@browserbasehq/stagehand@3.7.3
releases_from_tagsno
days_since_latest_release19
mean_days_between_releases8.6

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

90Excellent · 17% of overall

Popularity & adoption

96Exceptional
How it's scored
60/60Stars — 24,301 stars
25/25Forks — 1,686 forks
11.1/15Watchers — 102 watchers
Inputs used
forks1,686
stars24,301
watchers102
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

77Good
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateyes

Ecosystem adoption (downloads)

100Exceptional
How it's scored
80/80Monthly downloads — 6,442,454 downloads/month across go, npm, pypi
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesgithub.com/browserbase/stagehand/packages/sdk-go/v4, browse, @browserbasehq/stagehand, stagehand
dependents—
ecosystemsgo, npm, pypi
total_downloads—
monthly_downloads6,442,454
unverified_packages_excluded—
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

74Good · 23% of overall

Maintainer resilience (bus factor)

63Moderate
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
14.4/22.5Commit distribution — top contributor authored 36% of commits
13.5/13.5Contributor breadth — 41 contributors
10/10OpenSSF Scorecard: Contributors — project has 16 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled41
top_contributor_share0.362

Issue & PR responsiveness

69Good
How it's scored
31.2/42Issue resolution — 74% of issues closed
22.7/30PR acceptance — 1,630/2,157 decided PRs merged
0/13Newcomer PR acceptance — 0/13 first-time contributors' PRs merged in 30d
15/15OpenSSF Scorecard: Code-Review — all changesets reviewed
Inputs used
merged_prs1,630
open_issues101
closed_issues293
prs_merged_7d5
prs_decided_7d9
prs_merged_30d35
prs_decided_30d55
issue_closed_ratio0.744
closed_unmerged_prs527
first_time_authors_30d5
first_time_prs_merged_30d0
first_time_prs_decided_30d13

Ownership & stewardship

70Good
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
22.1/25Owner reach — 1,202 followers of browserbase
18.3/25Track record — 66 public repos, account ~2 yr old
Inputs used
followers1,202
owner_typeOrganization
is_verifiedno
owner_loginbrowserbase
public_repos66
account_age_days959

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 4 package(s) on go, npm, pypi
35/35Publish recency — latest publish 7 days ago
20/20Version history — 993 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesgithub.com/browserbase/stagehand/packages/sdk-go/v4, browse, @browserbasehq/stagehand, stagehand
ecosystemsgo, npm, pypi
any_deprecatedno
min_days_since_publish7

Engineering Quality

Are baseline engineering and documentation practices in place?

80Excellent · 19% of overall

Engineering practices

84Excellent
How it's scored
24/24CI workflows — 6 workflow(s)
24/24Tests present
16/16Linter config — eslint.config.mjs, packages/sdk-python/pyproject.toml ([tool.ruff])
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

75Good
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://stagehand.dev
10/10Repository description
10/10Topics — 6 topics
10/10Wiki
Inputs used
topicsagents, ai, llms, playwright, puppeteer, selenium
has_wikiyes
homepagehttps://stagehand.dev
docs_sitehttps://stagehand.dev
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

58Moderate · 16% of overall

Security posture

48Weak
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
3.8/7.5Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
7.5/7.5Code-Review — all changesets reviewed
2.5/2.5Contributors — project has 16 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5Dependency-Update-Tool — no update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
0/5Packaging — no data
4/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — Project has not signed or included provenance with any releases.
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 10 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate4.8
Excluded from scoring (no data or not applicable): Packaging. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
25/25Indirect dependencies free of known advisories — no indirect dependency carries a known advisory
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories0
affected_packages0
assessed_packages44
unassessed_packages0
affected_by_severitynone
direct_affected_packages0
Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the npm:@browserbasehq/stagehand@4.1.0 runtime dependency closure — what installing the published package pulls in — 44 packages. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

96Exceptional · 4% of overall

Agent context & guidance

100Exceptional
How it's scored
45/45Agent instructions — AGENTS.md, packages/integrations/cursor/AGENTS.md, packages/integrations/fx/AGENTS.md
15/15Machine-readable docs (llms.txt) — llms.txt served by the project website (https://stagehand.dev/llms.txt)
40/40Legible commit history — 91 of 91 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://stagehand.dev/llms.txt
legible_history_share1
agent_instruction_filesAGENTS.md, packages/integrations/cursor/AGENTS.md, packages/integrations/fx/AGENTS.md
agent_instruction_max_bytes906

Verify loop (build / test / typecheck)

90Excellent
How it's scored
18/18One-command bootstrap — justfile
22/22Automated tests
11/11Lint / format config — eslint.config.mjs, packages/sdk-python/pyproject.toml ([tool.ruff])
11/11Static type checking — packages/cli/tsconfig.json, packages/evals/tsconfig.json, packages/extension/tsconfig.json, packages/integrations/claude-agent-sdk/tsconfig.json, packages/integrations/claude-code/tsconfig.json, packages/integrations/codex-sdk/tsconfig.json, packages/integrations/codex/tsconfig.json, packages/integrations/core/tsconfig.json, packages/integrations/cursor-sdk/tsconfig.json, packages/integrations/deepagents-sdk/tsconfig.json, packages/integrations/eve-sdk/tsconfig.json, packages/integrations/eve/tsconfig.json, packages/integrations/fx-sdk/tsconfig.json, packages/integrations/mastra-sdk/tsconfig.json, packages/integrations/mastra/tsconfig.json, packages/integrations/pi-sdk/tsconfig.json, packages/integrations/pi/tsconfig.json, packages/integrations/vercel-ai/tsconfig.json, packages/protocol/tsconfig.json, packages/sdk-python/src/stagehand/py.typed, packages/sdk-ts/tsconfig.json, tsconfig.json
10/10Reproducible environment — Dockerfile, lockfile
10/10Demonstrated agent practice — 6 of the last 100 commits agent-authored or agent-credited
0/8Automated maintenance — no automated dependency updates observed
8/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 8
Inputs used
has_nixno
has_testsyes
lockfilesgo.sum, pnpm-lock.yaml, uv.lock
has_dockerfileyes
typed_languageyes
bootstrap_filesjustfile
has_devcontainerno
has_linter_configyes
typecheck_configspackages/cli/tsconfig.json, packages/evals/tsconfig.json, packages/extension/tsconfig.json, packages/integrations/claude-agent-sdk/tsconfig.json, packages/integrations/claude-code/tsconfig.json, packages/integrations/codex-sdk/tsconfig.json, packages/integrations/codex/tsconfig.json, packages/integrations/core/tsconfig.json, packages/integrations/cursor-sdk/tsconfig.json, packages/integrations/deepagents-sdk/tsconfig.json, packages/integrations/eve-sdk/tsconfig.json, packages/integrations/eve/tsconfig.json, packages/integrations/fx-sdk/tsconfig.json, packages/integrations/mastra-sdk/tsconfig.json, packages/integrations/mastra/tsconfig.json, packages/integrations/pi-sdk/tsconfig.json, packages/integrations/pi/tsconfig.json, packages/integrations/vercel-ai/tsconfig.json, packages/protocol/tsconfig.json, packages/sdk-python/src/stagehand/py.typed, packages/sdk-ts/tsconfig.json, tsconfig.json
agent_commit_share0.06
toolchain_manifestspackages/sdk-go/go.mod, packages/sdk-go/internal/generator/go.mod
dependency_bot_commit_share0

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — TypeScript (statically typed)
54.5/55Manageable file sizes — 10/1,046 source files over 60KB
Inputs used
primary_languageTypeScript
largest_source_bytes120,125
source_files_sampled1,046
oversized_source_files10

Machine-readable interfaces

100Exceptional
How it's scored
40/40API schema (OpenAPI/GraphQL/proto) — packages/docs/v3/openapi.json
20/20MCP server
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalyes
api_schema_filespackages/docs/v3/openapi.json
interfaces_expected_of—

Key facts

24,301GitHub stars
41contributors
830commits, last 12 months
0days since last push
81releases
2bus factor
101open issues
npmpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 1,686 ⇿
0Stars
1,686Forks
56Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

Only the most recent history is shown — this repository exceeds the collection window, so the earliest history is not captured.

5007501,0001,2501,5001,7501,686382025-062026-022026-09
Major 0Minor 0Patch 0

Each point covers 2 days.

OpenSSF Scorecard 4.8 / 10
4.8aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-09-16 19:32 UTC

10Binary-Artifactsno binaries found in the repo
5Branch-Protectionbranch protection is not maximal on development and all release branches
10CI-Tests30 out of 30 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
10Code-Reviewall changesets reviewed
10Contributorsproject has 16 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
n/aPackagingpackaging workflow not detected
8Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 8
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities10 existing vulnerabilities detected
Direct dependencies 78
RegistryPackageVersion constraintManifest
npm@browserbasehq/sdk^2.14.0packages/cli/package.json
npm@browserbasehq/stagehandworkspace:*packages/cli/package.json
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All dependencies 371

Full resolved dependency set from the GitHub dependency graph: 66 direct and 305 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

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Dependency advisories 0

Installing npm:@browserbasehq/stagehand@4.1.0 pulls in 44 packages, direct and transitive: 0 carry known advisories, of which 0 are direct dependencies.

No known advisories affect the assessed dependencies.

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

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Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — Go, npm, PyPI.